Have a very similar issue.
This is the offender's site: (google cache version)
https://webcache.googleusercontent.c...&ct=clnk&gl=uk
This is mine:
https://www.projectvoyeur.com
He has cloned over 100K pages on my site and counting. I contacted cloudflare who responded with their party line about not being the host so I was dead in the water.
Previously, when contacting google (DMCA), they have taken action on sites like this. This time however, they did pretty much nothing. The fact that this person is cloning my site and then serving cloaked pages (which is why I showed the cached version above), didn't seem to bother the folk at Google at all.
So I kinda figured I was stuck with this.